1. Plural form of the word "Slagathor".
2. A group of hideous girls/women/bitchs/etc that are hard to look at for any amount of time, but are so mind-bogglingly nasty, one cannot help but stare. *Note: Staring can lead to Night-Blindness, Impotency, Night Terrors, Palpable Rage, Hate for everything, Erectile Dysfunction, and/or a myriad of horrible testicle diseases that will ensure that you die miserable and alone.*

Loser 1:
Dude, did you see the chicks at Mike's party?
Loser 2:
Yeah, he had a fuckin' Slagathi convention in there.